1.

The intensity of electric field required to balance a proton of mass \[1.7\times {{10}^{-27}}kg\] and charge\[1.6\times {{10}^{-19}}C\] is nearly

A. \[1\times {{10}^{-7}}\ V/m\]
B. \[1\times {{10}^{-5}}\ V/m\]
C. If assertion is true but reason is false.
D. \[1\times {{10}^{5}}\ V/m\]
Answer» B. \[1\times {{10}^{-5}}\ V/m\]


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